Folding tooth-brush.



L. KALINA.

FOLDING TOOTH BRUSH.

APPLICATION FILED MAY 4, 1914.

1,134,459. Patented Apr. 6, 1915 INVENTUR afl v mm Jan ATTORNEYSLOESER'KALINA, or NEW YORK, N. Y.

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Specification of Letters Patent.

Patented Apr. e, 1915.

Application filed May 4, 1914. Serial No. 836,176.

T all whom it may concern Be it known that L'Lonsnn KALINA, a citizen ofthe United States, and a resident ofthe city of New York, borough ofBrooklyn, in the county of Kings and State of New York, have invented anew and Improved Folding Tooth-Brush, of which the following is a full,clear, and exact descnption.

The object of the invention is to provide a new and improved foldingtooth brush arranged to permit the user to conveniently extend the brushfor use or to fold the same in a hollow handle with a view to take upvery little room and to allow of packing the tooth hrush into a handbag, vest pocket, valise or other receptacle without danger of thebristles coming in contact with other articles.

In order to accomplish the desired result use is made of a hollowhandle, a brush havin a short shank, and a carrier held in the saidhollow handle and in which the said shank is mounted to turn to allow ofmoving the brush into extended position with the bristles projectingbeyond .one side of the handle and to allow of moving the brush into thehollow handle to confine the same therein.

A practical embodiment of the invention is represented in theaccompanying drawings forming a part of this specification, in whichsimilar characters of reference indicate corresponding parts in all theviews.

Figure 1 is a perspective view of the folding tooth brush with the brushin position for use; Fig. 2 is a sectional .plan view of the same; Fig.3 is asimilar view of the same with the brush in folded position withinthe hollow handle; Fig. 4: is a cross section of the same on the line4-4 of Fig. 3; Fig. 5 is a perspective view of the carrier for the brushand with the several memhere in disassembled position; Fig. 6 is asectional plan view of a modified form of the folding tooth brush withthe brush in folded position; Fig. 7 is a side elevation of the samewith the brush in extended position; and Fig. 8 is a cross section ofthe same on the line 8-8 of Fig. 6.

The tooth brush A proper is provided with a short shank A terminating ina journal A mounted to turn in a yoke B held in a cup-shaped holder Cremovably fitting into the open ..of a hollow handle or casing D. In theyoke B is mounted to slide transversely an apertured clamping block Ethrough which passes loosely the journal A and in the said clampingblock E screws a screw F passing loosely through the block B, the.holder C and through a slot D formed in one side of the hollow handle Dat one end thereof as plainly indicated in the drawings. The outer endof the screw F is provided with a clamping head F adapted to abutagainst the side of the handle D. When the head F of the screw F isturned in one direction the clamping block E is moved in the yoke B tofirmly engage the journal A and thus clamp the same in position in theyoke B. I noticed that by this movement the yoke B is drawn in the samedirection toward the front side of the casing D and with it the holder Cwhereby the latter is clamped in position in the handle D. When the headIt will also be' F is turned in the reverse direction the holder C isunclamped relative to the handle D and the clamping block E releases theY journal A to allow the latter to turn in the yoke B. It will benoticed that when the screw F is in this released position the brush Awith the holder C, yoke B and screw F can be moved from the end of thehollow handle D to permit of moving the brush A either from the extendedposition shown in Figs. 1 and 2 or into the folded position illustratedin Fig. 3 or vice versa.

In order to insure a firm clamping of the journal A by the clampingblock E and to prevent accidental turning of the journal in the yoke Bthe said journal A? is provided on opposite sides with flattenedportions (see Fig. 4) and the clampgng block E has its borev provided.with a at rear face to engage either of the flattened portions of theournal A at the time the brush A is in either the extended or foldedposition.

, In order to hold the journal A against outward movement in the yoke Bthe journal A is provided with an annular groove A adapted to be engagedby the side walls of a slot G of a locking plate G inserted in the yokeB between the clamping block E and one member of the yoke B, as will bereadily understood by reference to Figs. 2 and 3. The slot -Grterminates in an enlarged portion Gr of a diameter corresponding to thatof the journal A to permit convenient insertion of the, journal A in theyoke B at the time the enlarged portion G is in register with thejournal A After the journal A is inserted in the yoke B the lockingplate G is pushed into final position so as to engage the side walls ofthe slot- G with the annulargroove A locking plate G is provided at twoof its corners with small struck-up projections G to permit ofconveniently moving the looking plate G into either of the two positionswhenever it is desired to insert or remove the brush A from the yoke B.It is understood that the yoke B together with the clamping block E, theplate G, the holder C and the screw F form a carrier for the brush A tosupport the latter in the handle D and to hold the brush in the desiredposition.

When the brush A is folded within the hollow handle D, as shown inFig.3, and it is desired to extend the brush for use then the userslightly turns-the head F to release or unlock the holder C relativelyto the hollow handle D and to lock the journal A in the yoke B, aspreviously mentioned. The user now by taking hold of the head F canconveniently pull the carrier and the brush out of the hollow handle D,and the user now gives a half turn to the brush A and then inserts theholder C in the open end of.

the handle D with the brush A extending outward, as indicated in Figs. 1and 2. The

user now turns the head F in a reverse direction to fasten the journal Ain the yoke B and to clamp the holder C in position in the open end ofthe hollow handle D. The tooth brush bristles now project beyond therear side of the hollow handle D so as to permit convenient use of thebrush without danger of striking the handle D against the lips, teeth orgums of the user. After the brush has been used, the operator'againunscrews the screw F and removes the brush A with its carrier from theend of the handle D and then gives a half turn to the brush A to causethe bristles to extend to the side on which the head F of the carrier islocated. The brush A with its carrier can now be reinserted in thehandle I) with 'the brush extending within the handle, as indicated inFig. 3. It will be noticed that the .axis of the journal A is to oneside of the longitudinal center of the carrier to allow of projectingthe bristles of the brush beyond one side of the handle D, as shOWn inFigs. 1 and 2, and to allow the. bristles to readily pass into thehandle D without requiring the use of an unduly wide handle D toaccommodate the folded brush. It will be noticed that when the toothbrush is in the folded position the holder G fprms a closure at the openend of'the handle D to prevent dust or other extraneous matter frompassing into the hollow handle'D and to the brush A.

In case the bristles of the brush A have become worn or the brush isotherwise unfit for use then it can be readily replaced by a new one.For this purposethe brushA with The its holder isremov'ed from thehandle D and then the "screw F is unscrewed after which the lockingplate. G is drawn outward until the enlarged end G of the slot Gregisters with the ournal A 'to allow of pulling the brush A out of theyoke B, clamping block E and holder C. A new brush A can now be insertedin the said parts and locked in place against accidental movement by thelocking plate G. The screwF is then replaced topermit of fastening thetooth brush A in either of its two positions in the handle I), as aboveexplained.

In the modified form shown in Figs. 6, T and 8, the holder C- is omittedand the yoke B is slidingly fitted in the hollow handle D the open endof which can be closed by a cap H. The yoke B, the clamping block E andthe screw F-"with its head'F are the same as above described inreference to Figs. .1 to 5, and the journal A of the brush A is in thiscase held against longitudinal movement in the yoke B by a pin I passingthrough the terminal of the journal A and which terminalextends somewhatbeyond the inner side of the yoke B, as plainly indicated in Fig, 6. Thescrew F in this case passes through a slot D formed in one side of thehollow handle D to allow of sliding the brush A either outward intoextended posi-' tion as shown in Fig. 7 or inward into folded positionas shown in Fig 6. When the brush A is moved into outer position fromthe folded position shown in Fig. 6 then a half turn is given to thebrush A so as to cause the bristles thereof to project beyond the sideof the handle D opposite the one having the slot D It is'understood thatthe cap H is removed when it is desired to extend the brush for use, andthe cap H is replaced after the brush has been used and returned intothe hollow handle D as shown in Fig. 6. It is understood that in eitherof the two positions of the brush A the yoke E is clamped in place inthe hollow handle D by the screw F and its head F The folding toothbrush shown and described is very simple and durable in construction andthe brush proper can be readily replaced by a new one when worn out orinjured so that the handle and carrier can be used indefinitely. It willalso be noticed that a number of brushe's having bristles of differentqualities, such as soft, hard or medium bristles, for instance, can beused, to permit of inserting a brush inthe handle according to thedesires of the user at the time.

Having thus described my invention, I

' claim as new and desire to secure by Let- 2. A foldable brush,comprising ahollow' handle, a brush having a short shank, a carrier heldin the said hollow handle and in which the said shank is mounted toturn, and means for fastening the shank in position in the carrier andforfastening the latter in position on the handle.

3. A foldable brush, comprising a hollow handle, a brush having a shortshank, a carrier held in the said hollow handle and in which the saidshank is mounted to turn, the axis of the shank being to one side of thecenter line of the carrier and the handle to allow the brush to beturned into an active position and into a folding position, the bristlesof the brush when the latter is in active position projecting beyond oneside of the handle and the bristles of the brush when the latter is infolded position registering with the opening of the handle, and afastening and clamping device for fastening the shank in active orfolded position on the carrier and for fastening the carrier to thehandle.

4. A foldable brush, comprising a hollow handle open at one end andclosed at the other end, a yoke in the said hollow handle,

a brush having a shank mounted to turn in the said yoke, means forholding the shank against outward movement in the said yoke, and meansposition in the said yoke and fastening the latter in position in thesaid hollow handle.

5. A foldable brush, comprising a hollow handle open at one end andclosed at the other end, a yoke in the said hollow handle, a brushhaving a shank mounted to turn in the said yoke, means for holding theshank against outward movement in the said yoke and provided with anannular groove, a clamping block in the said yoke and adapted to engagethe said shank, a locking plate having an opening enlarged at one endfor the passage of the said shank, the side walls of the opening beingadapted to engage the said groove, a cup-shaped holder for the saidyoke, and a clamping screw passing through a side of the handle, andyoke and screwing in the said clamping block to clamp the shank inposition in the yoke and to clamp the holder to the handle.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

LOESER KALINA.

Witnesses:

THEo. G. HOSTER, GEORGE H. EMSLIE.

for fastening the said shank inthe said holder

